Painter&#39;s striping brush



A INVENTOR 'June 7, C, Q ROBB 1,862,430

PAIN'IERS STRIPING BRUSH Filed Feb. 16, 1929 Patented June 7, 1.932

UNITED STATES PATENT OFFICE 'l CARL O. ROBB, OIE' COLORADO SPRINGS,COLORADO PAINTERS STRIPING BRUSH AApplication led February 16, 1829.Serial No.v 310,606.

' very unsatisfactory for many reasons, amongv which is thatit ispractically impossible to produce a stripe of uniform width and density,or which is parallel with another stripe,

or with a bead or the like, even although the work is gone over4repeatedly.

A primary.object of this invention-1s to construct a brush of thischaracter sofas to eliminate this tedious and expensive process of handstriping, and to'provide for the pulling of a stripe which is uniform inwldth and density from start to finish, which is parallel to a bead oranother stripe, and in which the time required is materially reducedthereby reducing the expense, and which does not tax the nerves andpatience of the operator. Another object is to so construct such a brushthat it may be suspended from the body of the painter and manipulatedwith one hand leaving the other hand free. Still another object is toprovide a 'striping brush which does not depend on gravlty to ensure theiow of the paint and in which the creation of a vacuum in the bristlesis prevented thereby ensuring uniformity in width and density ofthestripes so formed.

Another object is to so construct a brush of this character that it maybe easily assembled and dissembled for cleaning and other purposes.

In carrying out these objects, the invention is susceptible of la widerange of modification without departing from the spirit orv sacriicingany of the advantages of the 0 claimed invention; there being shown `inthe accompanying drawing for illustrative purposes a preferred andpractical form, in which:

' Figure 1 represents a perspective view of i the striping brushembodying this invention;

Fig. 2 is a vertical section of the paint con-- taining member thereof`with the tube which connects it with the brush head broken olf f l fromthe belt or other part of the apparel for convenience in illustration;

Fig. 3 isa longitudinal section through h) brush head and its connectionwiththe u e; v Fig. 4 is a horizontal section taken on the line 4-4 ofFig. 2;

Fig. 5 is a similar view taken on the line 55. 5 5 of Fig. 2; Fig. 6 isa transverse section taken on the line 6-6 of Fig. 3.

Fig. 7 is a detail perspective view of one of the guides and itsconnection, and o A Fig. 8 is a detail perspective of one of the o shortleg connecting arms.

In the embodiment illustrated the paint container is in the form of acan 1 on the upper end of which is removabl mounted a cover or topmember 2 which 1s threadedly or otherwise firmly secured to the can soas to permit of its removal when necessary and yet adapt it to withstandthe pressure of the compressed air used in forcing the paint out.

Depending from the inner face of this cover 2 is a pump cylinder 3 havina cap-like bottom 4 threadedly connected with the lower end thereof andthrough the bottom of which extends a discharge pipe 5 having a 75curved portion or goose neck at its lower end and withits upper endterminating in a gooseneck opening downwardly near the top of the can asis shown clearly 1n Figs. 2 and 4. On the bottom 4 and within the pump80 cylinder is a valve casing 6 provided with a spring controlled ballor check valve 7. which closes the opening from the casing into lthecylinder normally and which is adapted to be unseated by the preure ofair in the cylinder when the plunger or piston 10 is moved downwardthereby forcing the compressed air'out through pipe 5 into the top ofthe top cylinder to adapt it to exert its pressure on the top of thepaint to be used for forcing it out of the can in a manner presently tobe described. The piston has a rod 11 extending through the top 2 and isprovided with a detachable handle 12.

The top 2 has an air suction hole 8 open- 95 ing into the cylinder 3 anda suspension hook 9 is shown riveted to said top. This hook 9 isdesigned for use in suspending the can of the painter or from lany othersuitable support and while the hook 9 is shown attached to the to of thecan obviouslyI it may be fastened to t e side wall thereof 1f founddesirable to do so.

The tube 20 which conducts the paint from the can l to the brush head 25is connected at one end by a coupling sleeve 13 to the can and at itsother end by a similar sleeve 14 with the head 25.

Extending through the top 2 and down to a point near the bottom of thecan 1 is a pipe 15 the upper end of which is provided withy annularthreads or ribs 16 for connection with the tube 20 as is shown clearlyin Fig. 2. The sleeve 13 extends around this end of tube and firmlyclamps or holds it on the end of pipe 15.

The head 25 is provided at one end with an externally threaded reducedextension 26 designed to be inserted in the end of the tube 20 which istightly connected with Said extension by means of the sleeve 14 as isshown clearly in Fig. 3 the end of the tube abutting the shoulder formedat the base of the extension 26 while the ends of the sleeve 14 alsoabuts the shoulder. At the opposite end of the head 25 is a similarthreaded reduced extension 27 which is shown somewhat shorter than theextension 26 and is designed to have threaded engagement with a bonnet28 which forms an end closure for the valve chamber at the end of thehead 25 and which receives in its outer end the nipple or tip 30 havinga central bore 31a and constituting a part of the striping brush proper.This nipple 30 has secured around said bore and in its outer end by anysuitable means the hairs or bristles 31 which are arranged annularly toprovide a paint feeding channel within them.

At the center of the head 25 or rather midway the ends thereof is anenlargement 29 having a cut out portion 32 in which a lever 33 isfulcrumed. This lever has a laterally extending nose or toe 34 whichenters a notch provided in a valve 35 positioned within the head 25.This lever is designed for opening and closing the valve for controllingthe iow of the paint through the head.

Secured to the enlargement 29 of the head 25 are guide legs 36 two ofwhich are shown and which are provided at their free ends 'by means ofshort arms 38 having flat apertured ends 40 and 40a arranged in planesat right angles to each other and one of which is designed to be screwedto the enlargement 29 and the other to have the flattened aperturedinner end 36a of one of the legs 36 adjustably connected therewith. 4

The valve actuating lever 33 is preferably pivotally mounted in a slitor recess 32 of the enlargement 29 by means of a U-shaped pin 39 thelegs of which are lremovably inserted one throu h the enlargement andlever and the other 1n the enlargement 29 as is shown clearly in Fig. 6and with the curved portion thereof projlcting laterally beyond the headto aior a and grip for mampulating the device and for removing andinserting the pin when it is desired to assemble or dis` assemble theparts of the head.VVV Y The valve 35 which controls the flow of paintthrough the head 25 is constructed as shown in Fig. 3 to fit within saidhead and has at one end thereof a nipple like projection 35a whichnormally closes the passage through the extension 26 and which has anannular space surrounding it so that when this nipple is unseated thepaint may iow through the passage in the extension 26 into the head andthen through a longitudinally extending passage 41 formed in the body ofthe valve and which opens at its opposite end into a chamber 42 whlchcommunicates with the passage 29a in the bonnet 28 and with the passage31a in the nipple or tip 30 and discharges into the space between thebristles thereby feeding paint to the bristles from the interiorthereof.

A coiled spring 43 is located in the chamber 42 and bears at oneendagainst the bonnet and at the other end against the shoulder at theinner end of said chamber of the valve and exerts its tension to holdthe valve 35 normally in closed position as shown in Fig. 3.

The valve 35 is designed to be opened to unseat the nipple 35a thereoffrom over the passage in the member 26 by depressing the lever 33whereby the valve body is moved longitudinally forward against thetension of the spring 43 thus permitting the paint to.

flow under the pressure of air in the container 1 outwardly to thebristles 31.

In the use of this fountain paint brush the cuplike container 1 isunscrewed from the clover 2 and filled with the desired quantity ofpaint of the desired color. It is then screwed back into the cover andthe operator pumps sulicient air into the can to create the necessarypressure to cause the paint to flow through the head to the bristles 31of the striping brush in the manner above set forth. The guide members36, one or both of which may be used, are adjusted to ride against thebead or other objects in connection with which the brush is to be usedand the pulling of the stripe is begun. It is of course understood thatthe container may be attached to the users belt by the hook 9 or to anydesired support and the rubber tube 2O is preferably passed over andattached to his shoulder to adapt 'it to hang down in convenientposition to locate the head 25 where he may grasp it and direct it inthe painting operation. This arrangement of the container and tubeleaves one arm and hand of the operator entirely free while the otherhand is used to grasp the head 25 and to manipulate the lever 33 forcontrolling the flow of the paint through the brush head. By thusmanipulating the brush the painter may pull a stripeof uniform width anddensity and one which will be parallel to the bead or other stripe.

It will thus be seen that by supplying a continuous flow of paint underpressure to the point of the) brush, creation of a vacuum is preventedwhich is objectionable in that it causes the hairs of the brush to comeytogether and result in the production of stripes which vary in widthand density and which this invention overcomes.

When it is desired to clean the outfit all that is necessary is to pullthe sleeves 13 and 14 away from the container and the brush head,respectively, and removel the tube 20 from the head 25. To clean thehead 25 the pin 39 is withdrawn thereby releasing the lever 33 and byunscrewing the bonnet 28 the spring 43 and valve 35 may be taken out ofthe head and all parts thoroughly cleaned.

Without further description it is thought that the features andadvantages of the invention will be readily apparent to those skilledinthe art, and it will, of course, be understood that changes in theform, proportion and minor details of construction may be resorted to,without departing `from the spirit of the invention or its scope asclaimed.

I claim:

A painters brush comprising an elongated lhead having a chamberintermediate its ends from and inlet and outlet passages leadin thechamber outwardly of the ends t ereof,

'i a bonnet at the outlet end of said head'and apertured partition, abristle carhaving an rying nipple detachably engaged with the outer endof said bonnet an havin a passage therethrough, a valve body havlngsliding fit in the said chamber and havmg a chamber opening through itsouter end, said valve body having an annular chamber formed exteriorlyof its rear and a assage leadin forwardly from the latter t rough theboy and opening into the inner end of the said chamber at its outer end,a spring engaged in the chamber at the other end of said valve andnorm'all acting to hold the rear end of said valve c osed and means carlried externally of said headl for actuating said valve to open position.

Signed at Colorado Springs inthe county of El Paso and State ofColorado, this 6th day of February, A. D. 1929. f

CARL O. ROBB.

